Hybrid module and drive arrangement for a motor vehicle

Abstract

A hybrid module for a motor vehicle for coupling an internal combustion engine includes a disconnect clutch, an electrical machine, a dual-clutch device, a disconnect clutch actuating system, a first actuating system, and a second actuating system. The disconnect clutch is for transmitting a first torque from the internal combustion engine to the hybrid module and disconnecting the hybrid module from the internal combustion engine. The dual-clutch device includes a first partial clutch and a second partial clutch. The disconnect clutch actuating system is for actuating the disconnect clutch. The first actuating system is for actuating the first partial clutch. The second actuating system is for actuating the second partial clutch. The disconnect clutch actuating system, the first actuating system, and the second actuating system are arranged next to one another in an axial direction.

The invention claimed is: 
     
       1. A hybrid module for a motor vehicle for coupling an internal combustion engine comprising:
 a disconnect clutch for:
 transmitting a first torque from the internal combustion engine to the hybrid module; and, 
 disconnecting the hybrid module from the internal combustion engine; 
 
 an electrical machine for generating a drive torque and comprising a rotor with a rotational axis; 
 a dual-clutch device for transmitting a second torque from the electrical machine or the disconnect clutch to a drivetrain and comprising a first partial clutch and a second partial clutch, the first partial clutch and the second partial clutch each arranged at least sectionally within a space surrounded by the rotor; 
 a disconnect clutch actuating system for actuating the disconnect clutch; 
 a first actuating system for actuating the first partial clutch; and, 
 a second actuating system for actuating the second partial clutch; 
 a rotor carrier connected substantially rotationally conjointly to the rotor; and, 
 an intermediate shaft connected substantially rotationally conjointly to the rotor carrier for transmitting a torque from the internal combustion engine to the rotor carrier, wherein:
 the disconnect clutch actuating system, the first actuating system, and the second actuating system are arranged next to one another in an axial direction and not interlaced radially one inside the other; and 
 the intermediate shaft extends radially through an inside diameter of the disconnect clutch actuating system. 
 
 
     
     
       2. The hybrid module of  claim 1 , further comprising a belt drive for transmitting rotational movement of the rotor to the dual-clutch device. 
     
     
       3. The hybrid module of  claim 1 , wherein:
 the first partial clutch, the second partial clutch, or the disconnect clutch comprises:
 a clutch disk; and, 
 a carrier device for transmitting torque from the clutch disk to a gearbox input shaft or to the intermediate shaft; and, 
 
 the carrier device is connected rotationally conjointly to the clutch disk, and fixed in the axial direction to the clutch disk, the gearbox input shaft, or the intermediate shaft. 
 
     
     
       4. The hybrid module of  claim 1 , wherein:
 at least one of the disconnect clutch actuating system, the first actuating system, or the second actuating system comprises:
 a substantially ring-shaped piston cylinder unit including an axially displaceable piston and a radial extent with a first radial spacing measured from the rotational axis; and, 
 a ring-shaped actuating bearing for permitting relative rotational movement between the piston cylinder unit and a clutch element to be actuated, the ring-shaped actuating bearing comprising a circumferential path with a second radial spacing measured from the rotational axis that is less than the first radial spacing. 
 
 
     
     
       5. The hybrid module of  claim 4  wherein the first partial clutch and the second partial clutch comprise respective friction engagement elements with a third radial spacing measured from the rotation axis that is greater than the second radial spacing. 
     
     
       6. The hybrid module of  claim 1  wherein a connection between the intermediate shaft and the rotor carrier has a cranked form such that the intermediate shaft and the rotor carrier radially overlap at least in regions. 
     
     
       7. The hybrid module of  claim 1 , further comprising a support wall, wherein the intermediate shaft is mounted rotatably on the support wall. 
     
     
       8. The hybrid module of  claim 7 , wherein the support wall includes a portion extending in the axial direction and arranged:
 between the disconnect clutch and the dual-clutch device; or 
 radially within the first partial clutch or the second partial clutch. 
 
     
     
       9. The hybrid module of  claim 7  further comprising a tie rod, wherein
 the first actuating system:
 is received on or in the support wall; 
 is mechanically connected to the tie rod; and, 
 comprises a piston cylinder unit with a piston; 
 
 the first partial clutch comprises a contact-pressure plate; 
 the tie rod is arranged to transmit a translational displacement of the piston to the contact-pressure plate; and, 
 the rotor carrier comprises a recess in which the tie rod is displaceable in translational fashion. 
 
     
     
       10. The hybrid module of  claim 1  wherein the intermediate shaft comprises a bearing arranged to radially support a distal end of the intermediate shaft on a gearbox input shaft. 
     
     
       11. A hybrid module for a motor vehicle for coupling an internal combustion engine comprising:
 a disconnect clutch for:
 transmitting a first torque from the internal combustion engine to the hybrid module; and, 
 disconnecting the hybrid module from the internal combustion engine; 
 
 an electrical machine for generating a drive torque, the electrical machine comprising a rotor with a rotational axis; 
 a dual-clutch device for transmitting a second torque from the electrical machine or the disconnect clutch to a drivetrain, the dual-clutch device comprising:
 a first partial clutch; and 
 a second partial clutch; 
 
 a disconnect clutch actuating system for actuating the disconnect clutch; 
 a first actuating system for actuating the first partial clutch; 
 a second actuating system for actuating the second partial clutch; 
 a rotor carrier connected rotationally conjointly to the rotor; 
 an intermediate shaft connected rotationally conjointly to the rotor carrier for transmitting a torque from the internal combustion engine to the rotor carrier; and 
 a support wall, wherein:
 the first partial clutch and the second partial clutch are each arranged at least sectionally within a space surrounded by the rotor; 
 the disconnect clutch actuating system, the first actuating system, and the second actuating system are arranged next to one another in an axial direction and not interlaced radially one inside the other; 
 the intermediate shaft is mounted rotatably on the support wall; and 
 the support wall includes a portion extending in the axial direction and arranged:
 between the disconnect clutch and the dual-clutch device; or 
 radially within the first partial clutch or the second partial clutch. 
 
 
 
     
     
       12. A hybrid module for a motor vehicle for coupling an internal combustion engine comprising:
 a disconnect clutch for:
 transmitting a first torque from the internal combustion engine to the hybrid module; and, 
 disconnecting the hybrid module from the internal combustion engine; 
 
 an electrical machine for generating a drive torque, the electrical machine comprising a rotor with a rotational axis; 
 a dual-clutch device for transmitting a second torque from the electrical machine or the disconnect clutch to a drivetrain, the dual-clutch device comprising:
 a first partial clutch comprising a contact-pressure plate; and 
 a second partial clutch; 
 
 a disconnect clutch actuating system for actuating the disconnect clutch; 
 a first actuating system for actuating the first partial clutch; 
 a second actuating system for actuating the second partial clutch; 
 a rotor carrier connected rotationally conjointly to the rotor; 
 an intermediate shaft connected rotationally conjointly to the rotor carrier for transmitting a torque from the internal combustion engine to the rotor carrier; and 
 a support wall; and 
 a tie rod, wherein:
 the first partial clutch and the second partial clutch are each arranged at least sectionally within a space surrounded by the rotor; 
 the disconnect clutch actuating system, the first actuating system, and the second actuating system are arranged next to one another in an axial direction and not interlaced radially one inside the other; 
 the intermediate shaft is mounted rotatably on the support wall; 
 the first actuating system:
 is received on or in the support wall; 
 is mechanically connected to the tie rod; and, 
 comprises a piston cylinder unit with a piston; 
 
 the tie rod is arranged to transmit a translational displacement of the piston to the contact-pressure plate; and, 
 the rotor carrier comprises a recess in which the tie rod is displaceable in translational fashion.